Requirements for Database



DBS-01

Issue 1

May 2013

Spectrum Management and Telecommunications

Database Requirements

White Space (WS) Database Specifications

Contents

1. Intent 2

2. General Scope and Application 2

3. Definitions 2

4. Related Documents 4

5. White Space Frequency Bands 5

6. White Space Device (WSD) Operation 6

7. Database Information 6

7.1 Information on Licensed Systems 6

7.2 Information Required for TV Broadcasting Stations 7

7.3 Information Required for RRBS Base Stations 7

7.4 LPA Scheduling Information 8

8. Protection Criteria 8

8.1 Protection Criteria in the White Space Frequency Bands 8

8.2. Protection Criteria Over-the-Air TV Broadcast Stations 9

8.3. Broadcast TV Protected Contours 9

8.3.1. WSD Separation Distance from Broadcast TV Protected Contour 10

8.4 Protection Criteria to RRBS 13

8.4.1 WSD Separation Distance from RRBS Protected Contour 14

8.5 Protection Criteria to Licensed LPA 15

8.6 Protection of Radio Astronomy 16

9. Security 16

10. Database Access Initialization and Re-verification Procedures 17

11. Synchronization 17

12. Operation Near the Canada/U.S. Border 17

13. Interference Response 18

List of acronyms

AGL Above Ground Level

DUT Device Under Test

HAAT Height Above Average Terrain

IC ID Industry Canada Identification

PSD Power Spectral Density

WSD White Space Device

WSDB White Space Database

Intent

DBS-01, Issue 1, White Space Database Specifications, sets out the minimum technical requirements for the designation of a database capable of indicating available channels for use by white space devices in the white space frequency bands (i.e. 54-60 MHz, 76-88 MHz, 174-216 MHz, 470-608 MHz and 614-698 MHz).

General Scope and Application

A white space database (WSDB) is an Industry Canada recognized database system that provides lists of available channels to white space devices (WSDs), while ensuring protection of all licensed services and systems operating in the white space frequency bands.

Television white spaces (TVWS) are the unused portions of the TV broadcast spectrum in the VHF and UHF bands that remain vacant to prevent interference between broadcast stations or may be due to the limited demand for over-the-air TV stations in certain geographic locations. For the purposes of this document, TVWS will be referred to as white space (WS) where applicable.

A WSDB uses geo-location data provided by WSDs to dynamically manage their access to spectrum. WSDs are licence-exempt low-power wireless devices that operate on a no-protection, no-interference basis with respect to licensees operating in the same white space frequency bands.

Definitions

Available Channel

A range of frequencies which is not being used and is available for use by a white space device.

Dynamic Spectrum Access

A technique by which a radio system dynamically adapts to the local radio spectrum environment in order to determine available channels at specific locations.

Fixed White Space Device

A device that transmits and/or receives radiocommunication signals at a specified fixed location. The fixed device selects potential operational frequencies from a list of available channels, as provided by a white space database.

Access to the database may be through a direct connection to the Internet or through an indirect connection via another fixed or a mode II white space device.

Industry Canada Identification (IC ID) is Industry Canada’s certification number of a white space device.

Low-power apparatus (LPA)

Some examples of low-power apparatus (LPA) consists of wireless microphones, cue and control communications, and synchronization of video camera signals. Low power FM transmitters may also be included in this category, but their use is restricted and may only be authorized for operation under specific conditions.

Personal/Portable White Space Device

Personal/portable white space device is a white space device that transmits and/or receives radiocommunication signals while in motion, i.e. at non-vehicular speeds, or at unspecified fixed points.

Personal/Portable Mode I Device

A personal/portable white space device that does not use an internal geo-location capability and does not directly access a white space database to obtain a list of available radio frequency channels.

A mode I personal/portable device must obtain a list of available channels on which it may operate through an indirect connection via either a fixed device or a mode II personal/portable device. A mode I personal/portable device does not initiate a network of white space devices or provide a list of available radio frequency channels to another mode I device for use by such a device.

Personal/Portable Mode II Device

A personal/portable white space device that uses internal geo-location and accesses a white space database for a list of available radio frequency channels.

Access to the database may be through a direct connection to the Internet or through an indirect connection via a fixed or another mode II white space device. A mode II device may provide its lists of available radio frequency channels to another mobile device for use by that device.

Protected contour

A contour within which a station (for broadcasting, RRBS, etc.) and its associated receivers or remote stations have protection from other devices operating in the same frequency bands and which may potentially interfere with the station.

Remote Rural Broadband Systems (RRBS) equipment

Fixed systems that provide wireless Internet access for subscriber-based broadband Internet applications, using TV white space spectrum, on a licensed basis and without database connectivity.

Separation Contour

A contour resulting from the sum of the protected contour and the separation distance which together define a new and larger contour.

Separation Distance

The minimum distance between a white space device and a station’s protected contour (for broadcasting, RRBS, etc.) at which a white space device may operate.

White Space (WS)

Part of the spectrum available for radiocommunication by radio systems, at a specific time, in a given geographical area, on a no-protection, non-interference basis to other authorized radio services.

White Space Database (WSDB)

An Industry Canada recognized third party database that maintains records of all licensed services and systems approved to operate within white space frequency bands. The white space database determines available channels at a specific time and geographic location, and provides lists of available channels to white space devices.

White Space Database Administrator (WSDBA)

A third party service provider designated by Industry Canada to administer a white space database within Canada.

White Space Device (WSD)

A radio apparatus that operates in the white space frequency bands using dynamic spectrum access techniques.

Related Documents

CPC-DBAP Application Procedures for TV White Space Database Administrators

RSS-222 White Space Devices (WSDs)

SMSE-12-11 Consultation on a Policy and Technical Framework for the Use of Non-Broadcasting Applications in the Television Broadcasting Bands Below 698 MHz

SMSE-12-12 Framework for the use of Certain Non-broadcasting Applications in the Television Broadcasting Bands Below 698 MHz

SRSP 300.512 Technical Requirements for Remote Rural Broadband Systems (RRBS) Operating in the Bands 512-608 MHz and 614-698 MHz (TV Channels 21 to 51).

RSS- 196 Point-to-Multipoint Broadband Equipment Operating in the Bands 512-608 MHz and 614-698 MHz for Rural Remote Broadband Systems (RRBS) (TV Channels 21 to 51).

CPC 2-1-11 Low-power Licensed Radio Apparatus

RSS-210 Licence-exempt Radio Apparatus (All Frequency Bands): Category I Equipment

BPR-4 Application Procedures and Rules for Television Broadcasting Undertakings

BPR-10 Application Procedures and Rules for Digital Television (DTV) Undertakings

Access to Information Act

Personal Information Protection and Electronic Documents Act (PIPEDA)

White Space Frequency Bands

The frequency bands/channels potentially available for use by WSDs is shown in Table 1.

Table 1: Available Channels by Type of WSD

|Frequency Bands |TV Channels |Personal/ |Fixed |

|(MHz) | |Portable |WSD |

| | |WSD | |

|54-60 |2 |- | |

|60-72 |3-4 |[Note 1] |

|76-88 |5-6 |- | |

|174-216 |7-13 |- | |

|470-512 |14-20 |- | |

|512-608 |21-36 | | |

|608-614 |37 |[Note 2] |

|614-698 |38-51 | | |

Note 1: Channels 3 and 4 have been excluded from the list due to the use of these channels by consumer electronic devices in North America.

Note 2: Channel 37 has been excluded from the list to protect the operation of radio astronomy and wireless medical telemetry.

A WSDB shall only provide available channels, depending on the type of WSD (fixed or personal/portable), from among those listed above.

6. Database Information

6.1 Information on Licensed Systems

Information on licensed systems and services is to be obtained from Industry Canada’s licensing, certification and broadcasting databases. The WSDBs shall retrieve updated Industry Canada licensing information every 24 hours. For information on interfacing with these databases and interpretation of data fields, please refer to the following:

Broadcasting Applications Support[1]

Website:

Radio Equipment List (REL)[2]

Website:

Spectrum Direct[3]

Website:

6.2 Information Required for TV Broadcasting Stations

A WSDB shall obtain the following information from Industry Canada’s database for broadcasting stations to be protected from WSDs:

i) Transmitter coordinates (Latitude/Longitude);

ii) Maximum ERP;

iii) Height Above Ground Level of the transmitting antenna;

iv) Horizontal transmit antenna pattern (if antenna is directional);

v) Channel numbers;

vi) Station call sign; and

vii) Station status.

6.3 Information Required for RRBS Base Stations

A WSDB shall obtain the following information from Industry Canada’s database for RRBS stations to be protected from WSDs:

i) Transmitter coordinates (Latitude/Longitude);

ii) Maximum ERP;

iii) Height Above Ground Level of the transmitting antenna;

iv) Transmit antenna pattern (Horizontal/Vertical);

v) Channel numbers; and

vi) Station call sign.

6.4 LPA Scheduling Information

A WSDB shall obtain the following scheduling information from licensed LPA (fixed and mobile) wishing to be protected from WSDs:

i) Name of the individual or business responsible for LPA;

ii) Contact address;

iii) Email address for contact person;

iv) Phone number for contact person;

v) Coordinates of the location or area where the LPA will be used.

vi) Channels used by the LPA operated at the site;

vii) Specific months, weeks, days of the week and times when the LPA(s) will be used (on dates when microphones are not in use, the site will not be offered protection from WSDs); and

viii) LPA station call sign (if applicable).

7. Protection Criteria

A WSDB shall only return available channels according to the following protection criteria.

7.1 Protection Criteria Over-the-Air TV Broadcast Stations

A WSDB shall protect active over-the-air TV broadcast stations. TV broadcast stations with the following status are active: operational (OP), authorized (AU), and temporary operation (TO).

The broadcast TV protected contour is to be calculated for each of these stations using the geographic site location, maximum effective radiated power (ERP), effective height above average terrain (EHAAT), the horizontal antenna radiation pattern, and the terrain elevation based on a 3 arc second data from the most recent Canadian Digital Elevation Data (CDED) or United States Geological Survey (USGS), and the predefined thresholds of the TV protected contours as defined in Table 2.

Appendix B provides the detailed methodology on the broadcast TV protected contour calculation.

A WSDB shall not assign channels to a WSD within the minimum distance as specified in Section 8.3.2 at the edge of the broadcast TV protected contour.

7.2 Broadcast TV Protected Contours

i) A WSDB shall protect all active TV broadcasting stations, including active analog and digital TV stations (i.e. including full service TV stations, TV translator, TV booster stations), and low power TV (i.e. including LP TV translator, TV booster stations, cable TV headends, TV receiver stations, Very Low Power TV) from interference using the Thresholds for Broadcast TV Protected Contours as shown in Table 2.

Table 2: Thresholds for the Protected Contours of Broadcast TV Stations

| | |Thresholds for Broadcast TV| |

|Type of TV station[Note 1] |TV Channel |Protected Contour |Propagation Curve[Note 2] |

| | |(dBµV/m) | |

|Analog (full and low power)[Note 3] |Low VHF (Ch. 2-6) |47 |F(50,50) |

| |High VHF (Ch. 7-13) |56 |F(50,50) |

| |UHF (Ch. 14-51) |64-20log(615/F) |F(50,50) |

|Digital (full power)[Note 4] |Low VHF (Ch. 2-6) |28 |F(50,90) |

| |High VHF (Ch. 7-13) |36 |F(50,90) |

| |UHF (Ch. 14-51) |41-20log(615/F) [Note 5] |F(50,90) |

|Digital (low power)[Note 4] |Low VHF (Ch. 2-6) |43 |F(50,90) |

| |High VHF (Ch. 7-13) |48 |F(50,90) |

| |UHF (Ch. 14-51) |51-20log(615/F) [Note 5] |F(50,90) |

Note 1: Protection would also be extended to cable TV head-ends and low power TV receive sites that may be located outside of the protected contour of the TV broadcasting station whose signal it receives.

Note 2: See BPR-10, Application Procedures and Rules for Digital Television (DTV) Undertakings, Appendix 6,

Note 3: Source: BPR-4, Application Procedures and Rules for Television Broadcasting Undertakings, Section C-1.1.17,

Note 4: Source: BPR-10, Section B-1.5.

Note 5: F is the centre frequency of the TV channel in MHz.

7.3 WSD Separation Distance from Broadcast TV Protected Contour

The effective height above average terrain (EHAAT) of the WSD shall be used in the calculation of the minimum separation distance.

7.3.1 Determination of EHAAT for WSDs

An antenna's EHAAT is the average of the antenna's Height Above Average Terrain (HAAT) for eight standard radials spaced every 45 degrees of azimuth starting with true north. The height above average terrain (HAAT) is the height of the centre of radiation of the antenna above the average elevation of the terrain, as provided by the topographical information by the Communications Research Centre (CRC) Topographical Database 500 or the Canadian Digital Elevation Data (CDED), measured from 3 to 16 km from the antenna for an individual radial. The elevation points along a radial are averaged and then the eight standard radial averages are averaged to provide the final EHAAT value.

Determination of HAAT does not stop at the border or over bodies of water. HAAT incorporates the full 3 to 16 km radial segment, and will not employ truncated radials for calculations of radial average elevations above mean sea level (AMSL).

WSDB shall not provide any available channels on the list of available channels to a fixed WSD if its EHAAT exceeds 250 metres or its height above ground level (AGL) exceeds 30 metres.

A WSDB shall not indicate that any available channels on the list of available channels are available for use by a mode I personal/portable WSD with requested by a fixed WSD that has an EHAAT greater than 106 metres.

7.3.2 Separation Distance of WSD to Broadcast TV Protected Contour

i) When a fixed or mode II personal/portable WSD contacts a WSDB and provides its geographic coordinates, the WSDB will calculate which channels are available based upon the criteria below and provide a list of those available channels to the WSD:

a. A WSDB shall ensure that fixed WSDs and mode II personal/portable WSDs operating with power levels greater than 40 mW (16 dBm) shall operate outside the broadcast TV protected contours of both co-channel and adjacent channel DTV stations and at the minimum separation distances specified in Table 3 and Table 4, respectively.

b. A WSDB shall ensure that fixed WSDs and mode II personal/portable WSDs operating with power levels greater than 40 mW (16 dBm) shall operate outside the broadcast TV protected contours of co-channel, adjacent channel and taboo channels of analog TV stations (including N±1, N±2, N±3, N±4, N±7, N±8, N+14, and N+15) and at the minimum separation distances specified in Table 3 and Table 4, respectively.

c. A WSDB shall permit personal/portable WSDs operating with power levels of 40 mW (16 dBm) or less to operate within the broadcast TV protected contours of adjacent channels of TV stations.

ii) Fixed and mode II personal/portable WSDs must meet a table of minimum distance separations, from the broadcast TV protected contours as shown in Table 3 and Table 4, respectively. These distances are specified relative to the EHAAT of the WSD.

iii) In determining these required separations, the WSDB shall by default include a margin of error of +/- 50 metres in the WSD location, unless more specific information on the location accuracy of the WSD is available.

Table 3: Required Separation Distance of Fixed WSD to the Broadcast TV Protected Contour

|Fixed WSD |Distance (km) |

| |Regular DTV |Low Power DTV |Analog TV |

| | | |(Regular and LP) |

|EHAAT |Channel Range |Co-Channel |1st Adj Channel |Co-Channel |1st Adj Channel |Co-Channel |1st Adj |

|(m) | | | | | | |and |

| | | | | | | |Taboo Channels |

|  |2-6 |37.2 |2.0 |8.9 |5.9 |28.6 |1.7 |

|4-10 |7-13 |23.5 |1.7 |7.0 |4.0 |19.5 |1.7 |

|  |14-51 |14.6 |1.7 |5.1 |2.6 |11.3 |1.7 |

|  |2-6 |37.2 |2.0 |8.9 |5.9 |28.6 |1.7 |

|31-50 |7-13 |30.6 |1.7 |9.0 |5.1 |25.5 |1.7 |

|  |14-51 |18.7 |1.7 |6.6 |3.3 |14.8 |1.7 |

|  |2-6 |57.4 |3.1 |14.2 |9.3 |44.7 |2.6 |

|76-100 |7-13 |43.0 |2.0 |13.1 |7.1 |36.4 |1.7 |

|  |14-51 |27.4 |1.7 |9.3 |4.6 |21.4 |1.7 |

|  |2-6 |73.2 |4.2 |20.6 |13.5 |60.9 |3.4 |

|151-200 |7-13 |58.3 |2.1 |18.8 |9.6 |50.1 |1.8 |

|  |14-51 |37.3 |1.7 |13.4 |6.3 |30.6 |1.7 |

|  |2-6 |

| |Regular DTV |Low Power DTV |Analog TV |

| | | |(Regular and LP) |

|EHAAT |Channel Range |Co-Channel |1st Adj |Co-Channel |1st Adj |Co-Channel |1st Adj and Taboo |

|(m) | | |Channel | |Channel | |Channels |

|  |2-6 |13.5 |1.7 |3.5 |2.3 |10.6 |1.7 |

|4-10 |7-13 |8.8 |1.7 |2.8 |1.7 |7.4 |1.7 |

|  |14-51 |5.7 |1.7 |2.0 |1.7 |4.6 |1.7 |

|  |2-6 |13.5 |1.7 |3.5 |2.3 |10.6 |1.7 |

|31-50 |7-13 |11.3 |1.7 |3.6 |2.0 |9.5 |1.7 |

|  |14-51 |7.4 |1.7 |2.7 |1.7 |5.8 |1.7 |

|  |2-6 |21.6 |1.7 |5.6 |3.7 |16.9 |1.7 |

|76-100 |7-13 |16.9 |1.7 |4.8 |2.5 |13.9 |1.7 |

|  |14-51 |10.5 |1.7 |3.6 |1.7 |8.3 |1.7 |

|  |2-6 |31.6 |1.7 |7.9 |5.1 |24.9 |1.7 |

|151-200 |7-13 |23.8 |1.7 |6.3 |2.8 |19.9 |1.7 |

|  |14-51 |15.0 |1.7 |4.7 |1.8 |11.8 |1.7 |

|  |2-6 |

| |Co-channel |1st Adjacent |2nd Adjacent |

| |using F(50,10) |Channel using F(50,50)|Channel |

|Less than 3 meters |2 |2 |0.3 |

|3-Less than 10 meters |2 |2 | |

|10-Less than 30 meters |2 |2 | |

|30-Less than 50 meters |4 |2 | |

|50-Less than 75 meters |9 |1.6 | |

|75-Less than 100 meters |11 |1.7 | |

|100-Less than 150 meters |15 |1.9 | |

|150-Less than 200 meters |17 |2 | |

|200-250 meters |19 |2.1 | |

b) Mode II Personal/portable to RRBS

A WSDB shall ensure that mode II personal/portable WSDs operating with power levels greater than 40 mW (16 dBm) shall operate outside the protected contours of the co-channel and the first adjacent channel RRBS stations and at the minimum separation distances specified in Tables 6 below. A WSDB shall permit personal/portable WSDs operating with power levels of 40 mW (16 dBm) or less to operate within the protected contours of adjacent channel RRBS stations.

Table 6: Mode II Personal/Portable Separation Distance to RRBS

|EHAAT of Mode II WSD |Required Separation from RRBS Base Station Contour |

| |(km) |

| |Co-channel using |1st Adjacent |

| |F(50,10) |Channel[NOTE 1][NOTE 2] |

|Less than 3 meters |2 |0.7 |

|3-Less than 10 meters |2 | |

|10-Less than 30 meters |2 | |

|30-Less than 50 meters |2 | |

|50-Less than 75 meters |2 | |

|75-Less than 100 meters |2 | |

|100-Less than 150 meters |5 | |

|150-Less than 200 meters |7 | |

|200-250 meters |9 | |

Note 1: Adjacent channel operation is permitted for personal/portable WSD operating below 40 mW.

Note 2: The adjacent channel minimum separation distance was calculated using free space.

In determining the required separations, the WSDB shall by default include a margin of error of +/- 50 metres in the WSD location, unless more specific information on the location accuracy of the WSD is available.

7.5 Protection Criteria to Licensed LPA

i) A WSDB shall provide a registration facility for licensed LPA in order to collect location and time-of-use scheduling information.

ii) The location may be a point, radius or polygon. Multiple registrations that specify more than one point in the facility may be entered for very large sites.

iii) Operators of licensed LPA may register their scheduling information directly with a WSDB to provide information according to LPA call sign in order to have protection from WSDs.

iv) Registered licensed LPA scheduling information will be included within the WSDB and a WSDB shall not provide channels within the following distances of registered licensed LPA during their indicated time of operation according to the protection criteria outlined in Table 7.

v) A WSDB shall ensure that updated licensed LPA scheduling information be exchanged amongst all of the WSDBs.

vi) A WSDB shall confirm the licence of an LPA. If none exists, the WSDB shall reject the registration of the LPA, and return a message to contact Industry Canada for a licence.

vii) [Editor’s Note: Fixed LPA Scheduling Limits/Rules TBD]

viii) [Editor’s Note: Mobile LPA Scheduling Limits/Rules TBD]

Table 7: Licensed White Space Device Separation Distances from Licensed LPA

|White Space Device Characteristics |Required Co-Channel Separation (km) |

| |from protected LPA |

|Personal/portable |400 m |

| |400 m |

|Fixed |1 km |

7.6 Protection of Radio Astronomy

In order to protect radio astronomy observatories, a WSDB shall not permit the use of WSDs on any channel within a distance of 2.4 km from the following coordinates:

• The Dominion Radio Astrophysical Observatory, located near Penticton, British Colombia (Latitude 49° 19´ 12¨ North, Longitude 119° 37´ 12¨ West)

• The Algonquin Provincial Park in Ontario (Latitude 45° 57´ 20¨ North, Longitude 078° 04´ 23¨ West).

8. Security

i) A WSDB shall incorporate reasonable and reliable security measures to ensure that WSD will not operate on occupied channels or cause interference to licensed services or systems.

ii) A WSDB shall employ the following security measures:

• Communication between WSDs and WSDB shall be accomplished using secure methods (e.g. encryption) to prevent corruption or unauthorized modification of data.

• A WSDB shall ensure that the data is protected from unauthorized access, input, manipulation, or the deliberate extraction of operational and/or client data.

9. Database Access Initialization and Re-verification Procedures

i) A WSDB shall provide fixed and mode II personal/portable WSDs with channel availability information and included schedule changes for the upcoming 48 hours, upon initial and re-verification of WSD contact.

ii) A WSDB may provide available channel information to mode II personal/portable WSDs for locations beyond their current position and use that information to define a geographic area within which they could operate on the same available channels at all locations.

10. Synchronization

i) A WSDB shall ensure it synchronizes its data with Industry Canada licensing information every 24 hours.

ii) A WSDB must ensure that the scheduling information of licensed LPA is synchronized with the other WSDBs every 15 minutes.

11. Operation Near the Canada/U.S. Border

11.1 Background

The bands 54-60 MHz, 76-88 MHz, 174-216 MHz, 470-608 MHz and 614-698 MHz are currently covered by the Agreement Between the Government of Canada and the Government of the United States of America Related to the TV Broadcasting Service and the Associated Working Arrangement, the Letter of Understanding (LOU), which covers areas within 400 km of the border, and the Interim Agreement Between Canada and the United States Concerning Digital Television (DTV).

These three agreements and working arrangements deal with the sharing and use of the bands by broadcasting services operating in the United States and in Canada. In addition, the LOU specifies that new (non-broadcasting) services shall not claim protection from DTV stations or analog TV stations in either country.

The LOU does not deal with non-broadcasting versus non-broadcasting operations in the border area. Therefore, until such time as a new Agreement can be reached between Canada and the United States, any authorization issued for non-broadcasting use in Canada within 400 km of the border area must be on a no-interference, no-protection basis with respect to broadcasting services in the United States.

11.2 Protection Criteria for U.S. Stations

[U.S. broadcasting stations, protected receive sites and LPA are to be protected to the same criteria as specified for Canadian stations above, with the exception that protected contours and/or operational areas will be assumed to stop at the Canada/U.S. border.]

12. Interference Response

[A WSDB shall retain WSD technical parameters for [X] days for audit purposes in the case of interference reports. This information shall be provided to Industry Canada on formal request of the Department. A WSDB shall delete WSD locations after such time, provided that no interference has been reported.]

Issued under the authority of

the Minister of Industry

Marc Dupuis

Director General

Engineering, Planning, and Spectrum Branch

Appendix A

White Space Database (WSDB) Interface Evaluation Tests

A1.1 WSDB Interface Test to Connect with a Fixed WSD

A WSDB shall perform the following validations on the information provided by a fixed WSD before initializing it:

1) Industry Canada Identification Number (IC ID) for the WSD model is certified under RSS-222

2) Manufacturer’s serial number of the device is not on the denied list

3) Geographic Coordinates are within Canada

4) Antenna height above ground level (AGL) is provided and is ≤ 30m

A1.2 WSDB Interface with a Mode II Personal/Portable WSD Initialization

A WSDB shall perform the following validations on the information provided by a mode II personal/portable WSD before initializing it:

1) Industry Canada Identification Number (IC ID) for the WSD model is certified under RSS-222

2) Manufacturer’s serial number of the device is not on the denied list

3) Geographic coordinates are within Canada

A1.3 Mode I Channel List through Fixed WSD with Internet

Confirm that a WSDB will not provide any available channels on the list of available channels to a mode I through a fixed WSD with a EHAAT greater than 106 m.

A1.4 WSDB Mode I Personal/Portable WSD Validation

A WSDB shall only initialize a mode I Personal/Portable WSD if the IC ID for the WSD model is certified under RSS-222.

A1.5 White Space Channel Availability

A WSDB shall confirm which available channels are allowable to the type of WSD (fixed or personal/portable) under test.

A1.6 1st – Adjacent Power Reduction

A WSDB shall confirm that the geographical coordinates of a mode II within the protected contour of a 1st-adjacent station (e.g. broadcasting, RRBS), only provide available channels to personal/portable WSDs that have an output power limited to 40 mW e.i.r.p or less.

A1.7 LPA Channel Scheduling

After providing an available channel list to a WSD, a WSDB shall register the scheduling information and location of a LPA device(s).

A WSDB shall confirm that a previously operating WSD is no longer operating on a channel that has been subsequently designated for LPA use.

A1.8 LPA Channel Scheduling Synchronization

WSDB will ensure that up-to-date LPA scheduling information is synchronized with other WSDB.

Appendix B

Methodology on the Derivation of the Required Separation Distance to the TV Broadcast Protected Contours

Determination of the TV Broadcast Protected Contour

i) The distance of the TV station to the TV protected contour is determined by using the height above terrain (HAAT) in a particular azimuth, the ERP in the direction of that azimuth, the predefined thresholds of the TV protected contours as defined in Table B1 below and the F-curves.

ii) The height above average terrain (HAAT) is the height of the centre of radiation of the antenna above the average elevation of the terrain. It is determined directly from the terrain elevation database every 10 degrees, starting from true north, as measured from 3 to 16 km from the antenna for an individual radial.

iii) The topographical information is provided by the Communications Research Centre (CRC) Topographical Database 500 or the Canadian Digital Elevation Data (CDED).

iv) In order to determine an ERP in a specific azimuth of the HAAT, the directional antenna tabulations is used to provide the actual relative field at every 10 degree intervals starting from true north. Individual relative field values are then squared and multiplied by the maximum ERP which will derive the ERP at the specific HAAT.

v) Linear interpolation should be used to derive the HAAT and the corresponding ERP for values in between the pre-calculated values.

Methodology used to derive the require separation distances

1. Compute the maximum allowable WSD field strengths(dBµV/m) at the protected contours of the TV stations:

Uws=D-D/U+FB

Where, FB is the front-to-back ratio of the TV receive antenna in dB, given in the following Table. D/U in dB is the protection ratio given in Table 1. D is the threshold of the protected TV contours in dBuV/m as given in Table B1.

2. Once the maximum allowable WSD field strength values are computed (Uws), one can then use the WSD’s ERP and EHAAT, together with the F(50,10) propagation statistics to calculate the minimum required distances(Dreq) between the WSD and protected contours of the TV stations in each bands. The required separation distance to the TV broadcast protected contours is 1.12 times Dreq, the 1.12 is used to compensate the Front-to-Back ratio, as shown in Table B2, of the TV receiving station when it is not at the maximum value.

Table B1: TV Protection Ratios

| | |TV Protection Ratios |

|Type of TV station |Interfering Channel Offset |(Desired/Un-desired) (dB) |

| |Relative to Channel N | |

|Analog (full and low power) |N-1 |-14 |

| |N |34 |

| |N+1 |-17 |

|Analog (full and low power) UHF only |N–2 |-24 |

| |N+2 |-28 |

| |N-3 |-30 |

| |N+3 |-34 |

| |N-4 |-34 |

| |N+4 |-25 |

| |N-7 |-35 |

| |N+7 |-43 |

| |N-8 |-32 |

| |N+8 |-43 |

| |N+14 |-33 |

| |N+15 |-31 |

|Digital (full power) |N–1 |-28 |

| |N |23 |

| |N+1 |-26 |

|Digital (low power) |N–1 |-7 |

| |N+1 | |

| |for Simple Mask** | |

| |N–1 |-12 |

| |N+1 | |

| |for Stringent Mask** | |

| |N |15 |

**NOTE: Refer to BPR-10

Table B2: Front-to-back ratio (dB)

|Channels |Analog station |DTV station |

|2-6 |6 |10 |

|7-13 |6 |12 |

|14-51 |6 |14 |

Note: Due to the limitation of the F(50,10) curves, the minimum EHAAT that can be used is 30m and the minimum distance that can be determined is 1.5 km.

Appendix C

Methodology on the Derivation of the Required Separation Distance to Remote Rural Broadband Systems (RRBS)

The required separation distances to protect RRBS are based on the following field strengths (dBµV/m).

Table C1: RRBS Station Protection Criteria

|Channel |RRBS Station Protection Criteria |

| |(dBµV/m) |

|Co-Channel |37.8 |

|1st Adjacent |69.0 |

|2nd Adjacent |91.6 |

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[1] Data on television broadcast transmitters

[2] Data on certified equipment models

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